@FanOfMostEverything  
The Beast-X Megazord would like a word with you.

@FanOfMostEverything  
The Thunder Megazord and Thundersaurus Megazord say hi.

Had to check the tags. I was going to complain about the lack of Luna and Cadence on the basis that any Megazord with only three components is hardly worthy of the name.

Actually, I should have brought in a link to the scene in question:
 
Omnimon vs Diaboromon
 
Bonus points for Spike being Tai and Matt as Sunset and Twilight both assume that form against a multiplied Grogar.
 
Rarity: Wait a minute…where did Spike go!?!
 
None of them were sure how it was possible at the time, but Spike’s bond with Twilight was so strong, he himself had been drawn to the rift between worlds.
 
Spike: Twilight…Sunset…I just want you two to know…you’re not alone. And it’s not just me. Everyone from the parallel worlds are trying to reach out to you, knowing that Grogar’s next move would end them all. Feel their hope…and their strength!
 
Twilight: (coughs) We…feel them.
 
Because Hope can be just as powerful as Grogar’s despair as the two felt the universal consciousness merge them into a powerful being.
 
HumanTwilight: One half Sunset…
 
Discord: …the other half Twilight.
 
Grogar: IMPOSSIBLE! (fires at them…only for Daybreak Edge to deflect the lasers)

@Roy-of-Asturia  
that works too

Big Solfogg with GunSparkle and GunShimmer

@chaos15  
Could still make her Lunarmon or something.
 
Or use her evil side and make her Nightmaremon.

There’s only one thing that comes to mind when I see this:
 
LET’S KICK IT ON  
TO SHOW THEM ALL THE THINGS  
THAT WE CAN DO
 
LET’S KICK IT OOOOOOOOOON!  
TOGETHER!

 
Let’s do this!

@Beercules  
Owryumon is one of personal favorites.

@OptimusPrimevil  
I’ve always loved Owryumon but he’s rather obscure. Maybe even Imperialdramon. Spike could easily become any one of the dragon family.

@Background Pony #D740  
she’d be freaking voltron with those two. not that it’s a bad thing…

@Background Pony #D740  
that’s be the Paiildramon.

Luna and Cadence should have been her legs

@Beercules  
any ideas on who to do next?

Awesome! We need more Digimon art here!

Omnipon/Omegapon

@alexi148  
Cuz Lunamon already exists.  

@alexi148  
main body = celestia, the arms are of her students.  
a luna fusion would be a different ’mon altogether.

Y NO LUNA

NOW THIS IS AWESOME.

Well, that’s awesomeness in pony form.